Series resonance dual output
Our power supply, with series tank and dual output design, can easily achieve multi output melting system, of which the most common and typical is dual output system.
Power supply, with series tank and dual output design, connects with two furnaces to form the melting system so called “one power supply / two furnaces”. Two furnaces can run at the same time, one is melting while the other holding. Total power can be shared between two furnaces at any required level, and there is no need to choose furnace by using external switching device.The series resonance design,which has a wide range of load matching, can ensure equipments keep running at a sustained and stable condition.Power supply with a fully open rectifier design, so high power factor and minimum harmonics achieved.Multi-pulse rectifier design, with 12 pulses and 24 pulses,can futher decrease harmonics. Unique design of rectifier firing board can balance the input current automatically. Moreover, soft starting to prevent the inrush to the power supply. As an fast electronic switch, shut off the power supply under fault situation.All of digital signal transferred through optical fiber. Has high anti-noise capability, and a more stable system.
Power supply, with series tank and dual output design, is enclosed completely in a cabinet.All copper bus bar and copper tube used inside power supply are supplied from recognized vendor with famous brand; Every copper bus bar is made according to standard, and through sand-blasting, inhibiting processes. All the components layout, connections, wiring are designed with much attention, they meet standard, and are easy to access for repair and maintenance. Isolating switches are planted between rectifier and inverter. Whenever fault occurs,it can be isolated, and the system keep running by using the power supply on the other side. Power supply equipped with a melt-manager, which is mainly composed of an PLC and HMI. Functions includes: automatic sintering, cold start, fault diagnosis, fault message storage and display, system running data display, and system status display etc..There is an isolated enclosure located at the top section of front door, with main control board, feedback board, control power supply installed inside,Service personnel can easily observe the signal on MCB.The main power electronics components of the power supply use water for cooling, when the components run,the temperature increasing makes no difference to isolated control enclosure, so extra cooling system for isolated enclosure is not needed. What is more, all of the electronic elements on MCB are selected according to high temperature degree.
Incoming power circuit breaker protection system. Fast reacting circuit breaker is mounted at power supply front face, It is electrically operated to close and open, an 24V under voltage trip solenoid function as interlock protection. when over current occurs,it trips as a result of over current protection,and cuts off incoming power supply.Full bridge rectifier converts AC to DC, provide a stable DC platform for inverter section.Output power can be shared between two sets of inveter bridge which has a series resonance design at any required level.Two sets of compensator device with series resonance make needs of dual output, so two furnace can run at the same time. Capacitors are planted in an enclosure cabinet,which is fabricated by high strength cold rolled sheet steel.Equipped with both differential current and DC injection leakage detection alarm circuit. It composed of indicator, leakage meter nad detection circuit etc. It continuously monitor during normal running. It shut off power when the following situation occur:
①metal penetrates lining and approaches coil,
②too much moisture exist in lining material,
③some parts has low resistance to ground.
Induction coil is made of Oxygen-free copper tube. Active and cooling sections are wound with continuous single winding, no division between sections.So different current and DC injection leakage detection alarm circuit can protect the whole coil. The different current leak detector is electronic so that it has a fast reaction speed, when the output circuit has a flashover fault to ground, it reacts at the fastest speed. However, the DC injection leakage detector is not electronic, which reacts slow comparatively. But when the power supply cabinet stops running, it can still detect the leakage for the furnace. At the same time,we can provide configured equipments and all kinds of function options to meet your different configuration needs, so you can feel the high-efficiency, convenient and safe products of XinYan.
"Excuse me," Arthur ventured, huskily, "did you wish to speak to me?" "What!" Balmayne cried, "were you mad enough to----." seventeen Christmas presents? I'm a Socialist, please remember; And to close the procession came more soldiers. For that fog the seaplane was making at full speed. It was no wonder that Spain, feeling the serious effects of this state of things, should resist it; and when she did so, and exerted an unusual degree of vigilance, then the most terrible outcries were raised, and wonderful stories were circulated of Spanish cruelties to our people beyond the Atlantic. At this time the Opposition got hold of one of these, and made the House of Commons and the nation resound with it. It was, that one Captain Robert Jenkins, who had been master of a sloop trading from Jamaica, had been boarded and searched by a Coastguard, and treated in a most barbarous manner, though they could detect no proof of smuggling in his vessel. He said that the Spanish captain had cut off one of his ears, bidding him carry it to his king, and tell his Majesty that if he were present he would treat him in the same manner. This story was now seven years old, but it was not the less warmly received on that account. It excited the utmost horror, and Jenkins was ordered to appear at the bar of the House of Commons on the 16th of March, to give an account of the outrage himself; and it would appear that both he and other witnesses were examined the same day. Jenkins carried his ear about with him wrapped in cotton, to show to those to whom he related the fact, and the indignation was intense. He was asked by a member how he felt when he found himself in the hands of such barbarians, and he replied, "I recommended my soul to God, and my cause to my country." The worthy skipper had probably been crammed with this dramatic sentiment by some of his clever Parliamentary introducers; but its effect was all the same as if it had been a genuine and involuntary expression of his own mind. Researches made at the Admiralty in 1889 proved that he really had lost an ear. Nevertheless, the whole army was dead beat and in the most deplorable condition when they entered Carlisle on the morning of the 19th. As the enemy did not appear, they rested that day and the following night, when they set forward again, leaving a fresh garrison. Cumberland was soon up before the walls, and they fired vigorously at him; but he sent off to Whitehaven and brought up six eighteen-pounders, with which, to their dismay, he began to play on their crumbling walls on the 29th. Next morning they hung out a white flag, and offered to capitulate; but Cumberland would hear of no terms except their surrendering on condition that they should not be put to the sword. At three o'clock in the afternoon both town and castle were surrendered, the garrison being shut up in the cathedral, and a guard set upon them. On the 3rd of January the Duke of Cumberland left the command to General Hawley, and hastened back to London, being summoned to defend the southern coast from a menaced landing of the French. In pursuance of this plan of the campaign, Prideaux and Johnson arrived before the fort of Niagara in the middle of July, which they found very strong, and garrisoned by six hundred men. Prideaux was soon killed by the bursting of a shell, but Johnson continued the siege with great ability, having to invest the fort on one hand, whilst he was menaced on the other by a mixed body of French and Indians, one thousand seven hundred in number, who came to relieve the fort. The attack upon him commenced with a terrible war-whoop of the Indians, which, mingling with the roar of the great cataract near, made the most horrible din imaginable. But this did not disconcert the English and their savage allies, who received them with such steady courage, that in less than an hour they were put to the rout in sight of their own garrison, and pursued for five miles with dreadful slaughter. The garrison thereupon capitulated, remaining prisoners of war. There, however, Sir William Johnson's career stopped. From various causes, not foreseen, he was not able to advance beyond the Ontario to unite with Amherst. That general had fully succeeded in taking Ticonderoga and Crown Point, but he found the French so strongly posted on an island at the upper end of Lake Champlain, that he was compelled to stop and build[134] boats to enable his army to reach and dislodge them; and it was not till October that he was ready to proceed, when he was driven back repeatedly by tempests, and compelled to go into winter quarters. "Some of you find Lieut. Bowersox, and bring him here," said Capt. McGillicuddy, sitting up, and beginning to twist a handkerchief around his thigh, to form a tourniquet. "Lieutenant, you all right?" The old man mounted into the seat, gathered up the rope lines, and chirruped to the horse to start. He hitched forward cautiously a little farther, to where he could peer through the bushes, being exceedingly wary not to repeat his opponent's mistake, and set their tops in motion. A rock protruding through the ground in front of him made an opening through which he could see, and also afforded a rest for his musket. He looked sharply, and at length was rewarded by seeing the gun-barrel come out by the side of the barked willow, rested on a bare limb, and apparently aimed at the hill beyond. He took a long breath to steady his nerves, stretched out his legs to make himself more at ease, pushed his musket forward until he got exactly the right poise, aimed about nine inches below the level of his opponent's gun-barrel, and a little to the left, drew his bead down to a hair's nicety in the hind sight, and pulled the trigger just as the rebel sharpshooter did the same. Both muskets seemed to flash at the same moment. The rebel sprang up through the willows and fell forward on his face. There was a vague hint that he had seen the face somewhere, but he dismissed it, then settled himself, and, busy with his own thoughts, pressed his face against the window, and tried to recognize through the darkness the objects by which they were rushing. They were all deeply interesting to him, for they were part of Maria's home and surroundings. After awhile the man appeared temporarily tired of billing and cooing, and thought conversation with some one else would give variety to the trip. He opened their lunch-basket, took out something for himself and his companion to eat, nudged Shorty, and offered him a generous handful. Shorty promptly accepted, for he had the perennial hunger of convalescence, and his supper had been interrupted. It was their regiment—the 200th Ind.; it was made up of the same companies, with the great majority of the men the same, but it was very far from being the 200th Ind. which crossed the Ohio River in September, 1862. "I should say he had a mighty strong breath, Monty," Shorty interrupted. He liked to break in on Monty's heroics. "Excuse me from havin' a 12pounder breathin' around me." "Yes, but d?an't m?ake him angry—he might beat you." "I used to be in the fancy," said the minister, "but five years ago the Lord challenged me, and knocked me out in the first round." "We shall talk further," said Holgrave: "in the mean time, we must consult for your own safety. If your father was a villein of this barony, it is not likely that the old steward, or the new one—the fiend Calverley—should forget you; and——"
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